Composite waterproof sheet and process of making the same



June 5,1928; 1,672,579

C.'H.-RAYNER COMPOSITE WATERPROOF: SHEET AND PROCESS OF MAKING THE SAME Filed Jan. '28, 1927 Fig.3.

rate'neea June 5, 192a UNITED STATES CHARLES HANSON RAYNER, OF ST. JOHNS, QUEBEC, CANADA.

COMPOSITE WATERPROOF SHEET AND r'BooEss or MAKING THE SAME.

Application filed January 28, 1927. Serial No. 164,292.

The objects of the invention are to furnish interlining means for the insulating walls of an enclosure 'inorder to maintain the atmosphere of theinterior in an equable condition; to construct an insulation sheet that will permit a limited aeration and. thereby avoid the deadness incidental to't'he use of close grained or pressed fillers to eliminate the retention of hot or cold air or nioisturefor a considerable period, and in place. promote a continuous ventilation through the looseness of the filler material, and to provide an effective covering for various uses that will prove cheap to produce and durable.

In the drawings, Figurel is an outline view showing diagrammatically the manner employed for interlocking the gauze and felt with a'backing.

Figure 2 is a diagrammatic view, showing the means employed for making the artificial leather.

Figure 3 is an enlarged sectional detail showing the gauze reinforcing the felt for the composite sheet. D

Figure 4 is a sectional detail showing the interstrung as the reinforced sheet.

Like numerals of "reference indicate cor responding parts in the various figures.

Referring to the d13.-W1I1gS,mth6 bind ng sheet 10 is a compositesheet comprising paper and a reinforcing gauze held together by a strong adhesive. Felt paper, such as building paper may be used ifdesired with an open mesh textile as the re nformement, though a paper reinforced with string is excellent for the purpose.

The felt paper is indicated by the numeral 11. and the string paper is indicated by numeral 12 and the gauze by 16.

The binding sheet 10 may be soaked in a fire proof compound, such as stannic chloride. The loose hair of fibrousmaterial is gathered together through the machine 13 and made into a loose bat, being held together by capillary attraction and forming a layer of loose hair clinging together and laid on a sheet of paper reinforced by a textile fabric or string; This sheet with the hair is passed through the needle loom 14, 0 which has the barb points 15, operating reciprocally and carrying the hair ends through the reinforced sheet and locking the hair thereto. 7

In making artificial. leather from-this 5 filler, the hair is interlocked with the reinforced sheet and the hairs through the back singed, that is to say, the filler is under a hot roller that will singe all the free hairs on the back surface of therein 7a forced sheet thereby smoothing-said sur'face in preparation for an asphalt adhesive.

. The integral base or binding sheet is now pressed so that all the holes in the filler are closed by the water proof substance, and

*furthermore all unevenness smoothed out,

' and in this condition, the filler is ready for What I claim is p 1. The herein described method of producing a composite waterproofing sheet cons sting in soaking the reinforced paper in stannie acid laying loose strands of hairy material on a sheet of reinforced paper, breaking'irregular holes, in the paper and a carrying hair therethrough singeing the hair projecting through on to the back of the sheet, laying asphaltum over the surface of the singed back and laying collodion over the asphalt surface.

2. A composite warterproofing sheet comprising a reinforced aper backing interlaid with string, a filler ormed of loose strands of hairy material penetrating the backing at many places and adhering thereto, a coating of 'asphaltum covering said backing, and a layer of collodion forming a surfacing over the asphaltum of imitation leather.

Signed at Montreal, Canada, this 18th ay f October, 1926.

CHARLES HANSON RAYNER. 

